bed charge是什么意思

用法例句

Two characteristics and ten advantages of the base dreg cleaning and strong cycle methane generating pit were introduced.

本文介绍了底层出料强回流沼气池的两大特色十大优

Adhesives used for FRP strengthened and repaired concrete comprises priming coating,troweling putty and impregnating resin.

FRP加固修复混凝土用粘结材料包括底层涂料、整平腻子和浸渍树脂。

Manufacturing of new base paste solves key topics in replacement of imported phenoplastic paper plywood by domestic one in production of potentiometers and improves forming technology and intrinsic quality of base carbon film in composite potentiometer

新型底层浆料解决了进口酚醛层压纸胶板国产化代用的关键问题，同时对合成碳膜电位器碳膜片底层的成膜工艺进行改进，提高了碳膜片的内在质量。